Head-mounted display device



FIG. 1 is a top right front perspective view of a head-mounted displaydevice showing our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is another top right front perspective view thereof, in which ahead attachment means in dot-dash broken lines is provided to illustratean example environment.

The short dash-dash broken lines in the drawings represent portions ofthe head-mounted display device that form no part of the claimed design.The dot-dash broken lines showing of a head attachment means in FIG. 8is for the purpose of illustrating environmental structure and forms nopart of the claimed design.

CLAIM The ornamental design for a head-mounted display device, as shownand described.